Word:

Ammonite

Am´mon`ite
n.1.(Paleon.) A fossil cephalopod shell related to the nautilus. There are many genera and species, and all are extinct, the typical forms having existed only in the Mesozoic age, when they were exceedingly numerous. They differ from the nautili in having the margins of the septa very much lobed or plaited, and the siphuncle dorsal. Also called serpent stone, snake stone, and cornu Ammonis.
Noun1.Ammoniteammonite - one of the coiled chambered fossil shells of extinct mollusks
Synonyms: ammonoid
ammonoid, fossil
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Ammodytes
Ammodytidae
Ammonal
Ammonia
ammonia alum
ammonia clock
ammonia water
Ammoniac
ammoniacal
Ammoniacal engine
Ammoniacal fermentation
ammoniate
Ammoniated
Ammonic
ammonification
ammonify
-- Ammonite --
ammonitic
Ammonitiferous
Ammonitoidea
Ammonium
ammonium alum
ammonium carbamate
ammonium carbonate
ammonium chloride
Ammonium cyanate
ammonium hydroxide
ammonium ion
ammonium nitrate
ammoniuria
ammonoid
Ammotragus
Ammotragus lervia
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